• Publications
  • Influence
Versatile, robust, and efficient tractography with constrained higher-order tensor fODFs
TLDR
In a unified deconvolution framework for diffusion MRI protocols, we represent fiber orientation distribution functions as higher-order tensors, which permits use of a novel positive definiteness constraint (H-psd) that makes estimation from noisy input more robust. Expand
  • 11
  • 1
  • PDF
Quantifying Microstructure in Fiber Crossings with Diffusional Kurtosis
TLDR
We demonstrate how strongly the presence of fiber crossings and the exact crossing angle affect measures from diffusional kurtosis, limiting their interpretability as indicators of tissue microstructure. Expand
  • 5
  • PDF
A Sheet Probability Index from Diffusion Tensor Imaging
A sheet probability index (SPI) has recently been derived from high angular resolution diffusion MRI to quantify the hypothesis that white matter tracts are organized in parallel sheets of interwovenExpand
  • 3
DT-MRI Streamsurfaces Revisited
TLDR
We introduce a suitable and efficiently computable test to the visualization literature, demonstrate that it can be used to distinguish integrable from nonintegrable configurations in simulations, and apply it to whole-brain datasets of 15 healthy subjects. Expand
  • 2
  • PDF
Fast and Accurate Multi-tissue Deconvolution Using SHORE and H-psd Tensors
TLDR
We propose a new regularization for spherical deconvolution in diffusion MRI. Expand
  • 3
  • PDF
Appreciation to Journal of Mathematical Imaging and Vision Reviewers
Appreciation to Journal of Mathematical Imaging and Vision Reviewers
Alexandre Afgoustidis Bijan Afsari Manuel Agusti-Melchor Dmitri Alekseevsky Ali H. Al-Hamdani Andrés Almansa Andreas Alpers L. Alvarez Samuel Amstutz Eric Andres Michael Ankele Erchan Aptoula EryExpand